第28题: [单项选择]Some educators try to put students of similar abilities into the same class because they believe this kind of ______ grouping is advisable. A. homogeneous B. instantaneous C. spontaneous D. anonymous 参考答案:A 答案解析:homogeneous 同种的,同质的;instantaneous 瞬间的;spontaneous 非出于强制的、自发的、自动的; anonymous 匿名的、姓氏不明的